linux-kernel - [PATCH v2 1/7] dt-bindings: pinctrl: rockchip: increase max amount of device functions

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Message-Id: <20250602-rk3576-pwm-v2-1-a6434b0ce60c@collabora.com>
Date: Mon, 02 Jun 2025 18:19:12 +0200
From: Nicolas Frattaroli <nicolas.frattaroli@...labora.com>
To: Linus Walleij <linus.walleij@...aro.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>, 
 Uwe Kleine-König <ukleinek@...nel.org>, 
 William Breathitt Gray <wbg@...nel.org>, 
 Sebastian Reichel <sebastian.reichel@...labora.com>, 
 Kever Yang <kever.yang@...k-chips.com>, Yury Norov <yury.norov@...il.com>, 
 Rasmus Villemoes <linux@...musvillemoes.dk>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Dave Ertman <david.m.ertman@...el.com>, Ira Weiny <ira.weiny@...el.com>, 
 Leon Romanovsky <leon@...nel.org>, Lee Jones <lee@...nel.org>, 
 linux-gpio@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, linux-pwm@...r.kernel.org, 
 linux-iio@...r.kernel.org, kernel@...labora.com, 
 Jonas Karlman <jonas@...boo.se>, 
 Detlev Casanova <detlev.casanova@...labora.com>, 
 Nicolas Frattaroli <nicolas.frattaroli@...labora.com>, 
 Conor Dooley <conor.dooley@...rochip.com>
Subject: [PATCH v2 1/7] dt-bindings: pinctrl: rockchip: increase max amount
 of device functions

With the introduction of the RK3576, the maximum device function ID used
increased to 14, as anyone can easily verify for themselves with:

  rg -g '*-pinctrl.dtsi' '<\d+\s+RK_P..\s+(?<func>\d+)\s.*>;$' --trim \
  -NI -r '$func' arch/arm64/boot/dts/rockchip/ | sort -g | uniq

Unfortunately, this wasn't caught by dt-validate as those pins are
omit-if-no-ref and we had no reference to them in any tree so far.

Once again kick the can down the road by increasing the limit to 14.

Acked-by: Conor Dooley <conor.dooley@...rochip.com>
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@...labora.com>
---
 Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.yaml
index 960758dc417f7405010fab067bfbf6f5c4704179..125af766b99297dc229db158846daea974dda28e 100644
--- a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.yaml
@@ -135,7 +135,7 @@ additionalProperties:
               description:
                 Pin bank index.
             - minimum: 0
-              maximum: 13
+              maximum: 14
               description:
                 Mux 0 means GPIO and mux 1 to N means
                 the specific device function.

-- 
2.49.0